Look at how our brains trick us into seeing patterns. We remember the times a dream matches real life but forget all the dreams that don't. For @the_lucas, that niche detail feels too real to ignore. Yet our minds are great at making links after something happens. The weird grocery list might just be a common worry we all have deep down. That's why I stay skeptical even when stories sound precise.
What details in a story like this make someone switch from skeptic to believer? When the repeated thought is something really niche, like planning a weird grocery list, it feels too precise for chance. I've heard similar stuff where people get deja vu from dreams that match up with tiny, random events later. That specificity is what tips the scales for me.